package net.minecraft.block;

import java.util.Random;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyInteger;
import net.minecraft.block.state.BlockState;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.item.Item;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

public class BlockFarmland extends Block {
	public static final PropertyInteger MOISTURE = PropertyInteger.create("moisture", 0, 7);

	protected BlockFarmland() {
		super(Material.ground);
		this.setDefaultState(this.blockState.getBaseState().withProperty(MOISTURE, Integer.valueOf(0)));
		this.setTickRandomly(true);
		this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.9375F, 1.0F);
		this.setLightOpacity(255);
	}

	public AxisAlignedBB getCollisionBoundingBox(World worldIn, BlockPos pos, IBlockState state) {
		return new AxisAlignedBB((double) pos.getX(), (double) pos.getY(), (double) pos.getZ(),
				(double) (pos.getX() + 1), (double) (pos.getY() + 1), (double) (pos.getZ() + 1));
	}

	/**
	 * Used to determine ambient occlusion and culling when rebuilding chunks for
	 * render
	 */
	public boolean isOpaqueCube() {
		return false;
	}

	public boolean isFullCube() {
		return false;
	}

	public void updateTick(World worldIn, BlockPos pos, IBlockState state, Random rand) {
		int i = ((Integer) state.getValue(MOISTURE)).intValue();

		if (!this.hasWater(worldIn, pos) && !worldIn.canLightningStrike(pos.up())) {
			if (i > 0) {
				worldIn.setBlockState(pos, state.withProperty(MOISTURE, Integer.valueOf(i - 1)), 2);
			} else if (!this.hasCrops(worldIn, pos)) {
				worldIn.setBlockState(pos, Blocks.dirt.getDefaultState());
			}
		} else if (i < 7) {
			worldIn.setBlockState(pos, state.withProperty(MOISTURE, Integer.valueOf(7)), 2);
		}
	}

	/**
	 * Block's chance to react to a living entity falling on it.
	 */
	public void onFallenUpon(World worldIn, BlockPos pos, Entity entityIn, float fallDistance) {
		if (entityIn instanceof EntityLivingBase) {
			if (!worldIn.isRemote && worldIn.rand.nextFloat() < fallDistance - 0.5F) {
				if (!(entityIn instanceof EntityPlayer) && !worldIn.getGameRules().getBoolean("mobGriefing")) {
					return;
				}

				worldIn.setBlockState(pos, Blocks.dirt.getDefaultState());
			}

			super.onFallenUpon(worldIn, pos, entityIn, fallDistance);
		}
	}

	private boolean hasCrops(World worldIn, BlockPos pos) {
		Block block = worldIn.getBlockState(pos.up()).getBlock();
		return block instanceof BlockCrops || block instanceof BlockStem;
	}

	private boolean hasWater(World worldIn, BlockPos pos) {
		for (BlockPos.MutableBlockPos blockpos$mutableblockpos : BlockPos.getAllInBoxMutable(pos.add(-4, 0, -4),
				pos.add(4, 1, 4))) {
			if (worldIn.getBlockState(blockpos$mutableblockpos).getBlock().getMaterial() == Material.water) {
				return true;
			}
		}

		return false;
	}

	/**
	 * Called when a neighboring block changes.
	 */
	public void onNeighborBlockChange(World worldIn, BlockPos pos, IBlockState state, Block neighborBlock) {
		super.onNeighborBlockChange(worldIn, pos, state, neighborBlock);

		if (worldIn.getBlockState(pos.up()).getBlock().getMaterial().isSolid()) {
			worldIn.setBlockState(pos, Blocks.dirt.getDefaultState());
		}
	}

	public boolean shouldSideBeRendered(IBlockAccess worldIn, BlockPos pos, EnumFacing side) {
		switch (side) {
		case UP:
			return true;

		case NORTH:
		case SOUTH:
		case WEST:
		case EAST:
			Block block = worldIn.getBlockState(pos).getBlock();
			return !block.isOpaqueCube() && block != Blocks.farmland;

		default:
			return super.shouldSideBeRendered(worldIn, pos, side);
		}
	}

	/**
	 * Get the Item that this Block should drop when harvested.
	 */
	public Item getItemDropped(IBlockState state, Random rand, int fortune) {
		return Blocks.dirt.getItemDropped(
				Blocks.dirt.getDefaultState().withProperty(BlockDirt.VARIANT, BlockDirt.DirtType.DIRT), rand, fortune);
	}

	public Item getItem(World worldIn, BlockPos pos) {
		return Item.getItemFromBlock(Blocks.dirt);
	}

	/**
	 * Convert the given metadata into a BlockState for this Block
	 */
	public IBlockState getStateFromMeta(int meta) {
		return this.getDefaultState().withProperty(MOISTURE, Integer.valueOf(meta & 7));
	}

	/**
	 * Convert the BlockState into the correct metadata value
	 */
	public int getMetaFromState(IBlockState state) {
		return ((Integer) state.getValue(MOISTURE)).intValue();
	}

	protected BlockState createBlockState() {
		return new BlockState(this, new IProperty[] { MOISTURE });
	}
}
